Animal-shears.



No. 678,225. Patented luly 9, |901. B. P. CLARK.

ANIMAL SHEABS.

(Applicltin led Nov. 8, 1899.) (lo Model.)

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UNiTnn STATES ATENT muon,

BAINBRIDGE P. CLARK, OF CHOTEAU, MONTANA.

ANIMAL-Seimas.

SPECIFECATION forming part of Letters Patent No. 678,225, dated. 9,1901.

Application tiled November 6, 1899. Serial No. 735,927. (No model.)

Be it known that I, BAINBRIDGE P. CLARK, a citizen of the United States,and a resident of Ohoteau, in the county ot' Teton'and State of`Montana,have invented certain new and useful Improvements in Animal-Shears,` ofwhich the following is a specification.

My invention relates to an improvement in animal-shears, and comprisesnovel features, which will be hereinafter pointed out in the claims.

Reference is to be had to the accompanying drawings, in which similarletters of reference refer to the same parts in the different figures.

Figure l is a sectional plan of my device. Fig. 2 is a section taken ina plane at right angles to that of Fig. 1, and Fig. 3 is a crosssectiontaken .through the casing.

The drawings accompanying this specification illustrate my invention inthe form which is now preferred by me. It will, however, be evident thatparts of my invention may be varied in form and structure withoutdeparting from the spirit of it.

The shears are of that general form in which two toothed cutting membersare employed having their faces in contact and having a relativereciprocating or vibrating motion. One of these members, which I hereincall a comb, consists of a plate J, which has a series of teeth J formedat one end thereof and is secured to the bottom of the casing or frame Aof the device so that its teeth project at one end of the casing. Theother cutting member consists of a plate C, provided with teeth whichare sharpened at'their edges, and is operated to give a reciprocating oroscillating movement, with its face in contact with the face of thecomb.

The casing A in the form herein shown is of a box-like construction,open at the top and at one end. The top I normally'closes the upper sideof the casing, but leaves the end open to accommodate the vibratinglever B. By reference to Fig. 1, in which the device is show.=A with thecover removed, it will be seen that at the open end, through which thelever B projects, the side walls of the case extend inwardly a slightdistance. The top I is provided with downwardly-projecting lugs ,(shownin Fig.2,) which-are so located as to iit snugly within the cornersformed by the side walls of the case and said slight inward projectionof the end wall, and thus to hold case and cover against lateral orlongitudinal displacement, While leaving the cover free to rise from thecase. The lever B is mounted upon a combination pivot and tension boltD, which passes through holes in the top and lever and screws into thecasing and, in conjunction with its lugs, holds the top in place.

The lever at the point where it receives the bolt is preferably providedwith a boss or sleeve b, which serves to give a longer bearing upon thebolt and also to engage the under surface of the top l. This latterresult might be obtained if the sleeve Z2 were separate and interposedbetween lever and top or if the sleeve were connected to the top. Thetop should, however, be made to engage the lever either directly orindirectly to enable the bolt D to be used as a tension-bolt. The holein the top through which the bolt passes is of such size that the boltdoes not beardirectly upon the top to hold it down upon the casing. Asocket is provided about the bolt receiving the tension-spring d, saidspring bearing upon the under surface of the bolt-head D2 and a flangeat the bottom of said socket. The edge of the bolt-head is notched and alocking spring G provided, having teeth adapted to enter the notches tolock the bolt against turning. The'spring G 'consists of a flat platesecured by one end to the casing and having its toothed free endengaging the notched or toothed edge of the bolt-head. The casing ispreferably provided with a groove g near the bolt, permitting depressionof the bar to free the bolt. At its outer end the lever is secured tothe movable cuttingblade O in such a manner that the two may be quicklyand readily separated for clean ing when desired. The means herein shownconsists of two pins C', which may be mounted upon either the lever orthe cutting-blade and enter corresponding holes in the other. With thesheet-metal construction of the cut ting-blade herein shown the pinswould most naturally be upon the lever B. At its inner end the lever isprovided with a bearing-surface e, which engages a similar surface uponthe casing, preferably a thin plate E, of steel, is inserted at thispoint to receive the wear.

IOS

This end of the lever has an upturned section B, which is slotted toreceive a crankpin F', carried on a rotatable shaft F. Rotation of thisshaft will give the lever an oscillating motion and cause thecutting-blade C to be moved back and forth over the surface of the combJ, thus cutting any hair or wool which might come between them.

The construction described makes it possible to separate the parts toclean them or for any other purpose by simply removing the single boltD. This does not require any tools, as the head of the bolt is of suchsize and projects so that it may be readily engaged by the fingers.

There are only four removable parts, none which are so small as to beeasily lost, the spring (I being secured by one end to the bolt D. It isthus feasible for the party using the device to take it apart and cleanit when it becomes clogged or gum med up, as frequently happens. Theconvenience and usefulness of the tool are therefore much enhanced. Thesimplicity of its construction land the small number of its parts alsocontribute to cheapness of manufacture and durability.

It is evident that the details of construction might be materiallychanged from that shown in the drawings without changing the essentialfeatures of my invention or departing from the spirit thereof. Theparticular construction herein shown is simply given as an illustrationof the form now preferred by me. I do not, therefore, wish to be limitedto the particular form herein shown where equivalent constructions maybe employed.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. An animal-shear comprising a case having a comb secured thereto, alever pivoted to vibrate in the case, a cap or cover having guidingengagement with the casing permitting vertical movement and preventingside movement thereon, a cutter carried by the lever and cooperatingwith the comb, and a single bolt passing through the cap and lever intothe casing and securing all the parts together and acting as a pivot andtension bolt for said lever, substantially as described.

2. An animal-shear comprising a casinghaving a comb secured thereto, alever pivoted to vibrate in the casing, a cutter carried by the leverand coperating with the comb, a cap covering the lever and havingverticallyslidable engagement with the casing, a single bolt adapted tosecure all said parts together and to also act as a pivot and tensionbolt for said lever and a spring interposed between the bolt head andcap and adapted to hold the cutter and comb in contact, substantially asdescribed.

3. An animal-shear comprisingacasing having a comb secured thereto, alever pivoted in the easing, a detachable cutter carriedv by said leverand coperating with the comb, a cap or cover having guiding engagementwith the casing and permitting vertical movement thereon, but preventingside movement, said casing yieldingly bearing upon said lever to holdthe two cutting members in contact, a combined pivot, tension andsecuring bolt for said cap and lever, and a spring between bolt and cap,substantially as described.

4. In an animal-shear the combination with a casing, a comb carriedthereby, a vibrating lever, a cutter carried by said lever and a cap orcover for said casing, of a combined tension and retaining bolt for saidparts removably screwing into the easing whereby upon the removal ofsaid bolt the parts of the device are freed and may be disengaged fromeach other, substantially as described.

5. An animal-shearcomprisingaeasing having a cutting member thereon, aremovable cap, and a lever within the casing carrying a coperatingcutting member, a combined pivot and tension bolt passing through capand lever, said cap and lever having engaging bosses surrounding thepivot-pin, the cap being exteriorly recessed about the pin, and a springin said recess beneath the bolt-head, and holding the cap and lever downwith a yielding pressure.

In testimony whereof I have hereunto affixed my signature this 31st dayof October, 1899.

BAINBRIDGE I. CLARK.

Witnesses:

H. J. SKINNER, JOHN A. SWEAT.

